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Phys.org / Ultrasound creates light inside the body, opening a new path to targeted treatments
Light has an increasing number of applications in biology and medicine—it can be used to stimulate cell growth, manipulate neural signals, and treat some cancers—but it doesn't easily pass through tissue. Most methods to ...
Dialog / Why do some stars in the galactic center survive while others are destroyed?
The center of our galaxy is an extreme place. Surrounding the supermassive black hole Sagittarius A*, stars are packed densely into a region where gravity, radiation, and dark matter all interact in complex ways. It is a ...
Phys.org / See and hear galaxies evolve from the dawn of the universe
The most realistic picture yet of how galaxies formed and then evolved from the beginning of time has been revealed in a suite of new and unique audiovisual simulations. These data, accepted for publication in the Monthly ...
Phys.org / Satellites reveal city methane emissions are rising faster than official estimates
Urban emissions of methane—a potent greenhouse gas—are rising faster than bottom-up accounting estimates anticipated, according to a study led by University of Michigan Engineering. The discrepancy was found with satellite ...
Phys.org / Museum fossil reveals that extinct giant echidnas once roamed Australia
Paleontologists have used an Ice Age fossil found 120 years ago in an underground cave to reveal that extinct giant echidnas roamed southeastern Australia during the Pleistocene Epoch, filling a major knowledge gap in the ...
Tech Xplore / AI models can fake visual understanding of images that don't exist
It wasn't long ago that news headlines claimed that AI might soon assist radiologists in interpreting X-rays of broken bones and analyzing mammograms. We are still far from the destination, as a new study has brought to light ...
Phys.org / New 'molecular handle' uses common amino acid to build complex medicines
In a new study published in Nature Communications, a team of chemists has unveiled a radically simple way to attach a highly sought-after "molecular handle," known as the dichloromethyl group, onto complex compounds. Instead ...
Medical Xpress / Fluoride and kids' IQ: What a decades-long analysis shows
Fluoride is a naturally occurring mineral that has been shown to strengthen teeth and reduce cavities. Many municipalities add fluoride to their drinking water—a process called community water fluoridation—as a public health ...
Phys.org / Tiny crystal defects solve decades-old mystery in organic light emitters
Materials that emit and manipulate light are at the heart of technologies ranging from solar energy to advanced imaging systems. But even in well-studied materials, some fundamental behaviors remain unexplained. Researchers ...
Phys.org / A tiny twist and synthetic diamond put superconductivity on a switch, opening a new route to lossless electronics
Researchers have discovered evidence that superconductivity can be controlled by influencing the surrounding environment, a finding that may lead to more efficient electronics down the road, according to a new study published ...
Tech Xplore / One tiny diode could shrink image sensors by adding memory and processing
P-n diodes are two-terminal devices that consist of two types of semiconductor materials (i.e., a p-type and an n-type material) joined together. These components allow electric current to only move in one direction, which ...
Phys.org / From ship wakes to soft tissues: Exploring fluid and solid surface-wave physics
A new study by scientists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) shows that when a pressure disturbance moves across an ultrasoft elastic material, such as a gel or a biological tissue, ...
